<template>
  <div>
      <!-- 面包屑导航 -->
  <el-breadcrumb separator="/">
  <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
  <el-breadcrumb-item>用户管理</el-breadcrumb-item>
  <el-breadcrumb-item>用户列表</el-breadcrumb-item>
  </el-breadcrumb>

  <!-- 卡片视图区域 -->
  <el-card>
  <!-- 搜索与添加区域 -->
  <el-row :gutter="20">
    <el-col :span="10">
    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear='getUserList'>
    <el-button @click="getUserList" slot="append" icon="el-icon-search"></el-button>
  </el-input>
    </el-col>
    <el-col :span="6">
        <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
    </el-col>
  </el-row>
  <!-- 用户列表区域 -->
  <el-table :data="userlist" border stripe>
      <el-table-column type="index"></el-table-column>
      <el-table-column label="姓名" prop="username"></el-table-column>
      <el-table-column label="邮箱" prop="email"></el-table-column>
      <el-table-column label="电话" prop="mobile"></el-table-column>
      <el-table-column label="角色" prop="role_name"></el-table-column>
      <el-table-column label="状态"  >
          <template slot-scope="scope">
              <el-switch
                v-model="scope.row.mg_state" @change="userStateChanged(scope.row)">             
                </el-switch>
          </template>
      </el-table-column>
      <el-table-column label="操作" >
          <template slot-scope="scope">
              <!-- 修改按钮 -->
              <el-button @click="showEditDialog(scope.row.id)" type="primary" size="mini" icon="el-icon-edit" circle></el-button>
              <!-- 删除按钮 -->
              <el-button type="danger" size="mini" icon="el-icon-delete" circle
              @click="removeUserById(scope.row.id)"></el-button>
              <!-- 分配权限按钮 -->
              <el-tooltip  class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button @click="setRole(scope.row)" type="warning" size="mini" icon="el-icon-setting" circle></el-button>
                </el-tooltip>
          </template>
      </el-table-column>
  </el-table>
  <!-- 分页区域 -->
   <el-pagination
      @size-change="handleSizeChange"
      @current-change="handleCurrentChange"
      :current-page="queryInfo.pagenum"
      :page-sizes="[1, 2, 5, 10]"
      :page-size="queryInfo.pagesize"
      layout="total, sizes, prev, pager, next, jumper"
      :total="total">
    </el-pagination>
</el-card>

<!-- 添加用户的对话框 -->
<el-dialog
  title="添加用户"
  :visible.sync="addDialogVisible"
  width="40%"
  @close="addDialogClosed"
  >
  <!-- 内容主体区域 -->
  <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px" >
  <el-form-item label="用户名" prop="username">
    <el-input v-model="addForm.username"></el-input>
  </el-form-item>
  <el-form-item label="密码" prop="password">
    <el-input v-model="addForm.password"></el-input>
  </el-form-item>
  <el-form-item label="邮箱" prop="email">
    <el-input v-model="addForm.email"></el-input>
  </el-form-item>
  <el-form-item label="手机" prop="mobile">
    <el-input v-model="addForm.mobile"></el-input>
  </el-form-item>
  </el-form>
  <!-- 底部区域 -->
  <span slot="footer" class="dialog-footer">
    <el-button @click="addDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="addUser">确 定</el-button>
  </span>
</el-dialog>
<!-- 修改用户的对话框 -->
<el-dialog
  title="修改用户"
  :visible.sync="editDialogVisible"
  width="50%"
  @close="editDialogClosed"
  >
      <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px" >
        <el-form-item label="用户名" >
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email" ></el-input>
        </el-form-item>
        <el-form-item label="电话" prop="mobile" >
          <el-input v-model="editForm.mobile" ></el-input>
        </el-form-item>
    </el-form>
  <span slot="footer" class="dialog-footer">
    <el-button @click="editDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="editUserInfo">确 定</el-button>
  </span>
</el-dialog>
<!-- 分配角色的对话框 -->
<el-dialog
  title="分配角色"
  :visible.sync="setRoleDialogVisible"
  width="50%"
  @close="setRoleDialogClosed">
  <div>
    <p>当前的用户:{{userInfo.username}}</p>
    <p>当前的角色：{{userInfo.role_name}}</p>
    <p>分配新角色:
      <el-select v-model="selectedRoleId" placeholder="请选择">
    <el-option
      v-for="item in roleslist"
      :key="item.id"
      :label="item.roleName"
      :value="item.id">
    </el-option>
  </el-select>
    </p>
  </div>
  <span slot="footer" class="dialog-footer">
    <el-button @click="setRoleDialogVisible = false">取 消</el-button>
    <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
  </span>
</el-dialog>

  </div>
</template>

<script>
export default {
    data(){
      //验证邮箱的规则
      var checkEmail = (rule,value,cb)=>{
        //验证邮箱的正则
          const regEmaiil = /^([a-zA-Z0-9_.-])+@([a-zA-Z0-9-])+(\.[a-zA-Z0-9_-])+/

          if(regEmaiil.test(value)){
            //合法邮箱
            return cb()
          }
          cb(new Error('请输入合法邮箱'))
      }

      //校验手机号的规则
      var checkMobile = (rule,value,cb)=>{
        //验证手机号的正则
        const regMobile = /^(13[0-9]|14[01456879]|15[0-35-9]|16[2567]|17[0-8]|18[0-9]|19[0-35-9])\d{8}$/
        if(regMobile.test(value)){
          return cb()
        }
        cb(new Error('请输入合法的手机号'))
      }
        return{
          editForm:{
            //查询到的用户信息对象
          },
            queryInfo:{
                query:'',
                pagenum:1,
                pagesize:2
            },
            userlist:[],
            total:0,
            //控制添加用户对话框的显示与隐藏
            addDialogVisible:false,
            //添加用户的表单数据
            addForm:{
                username:'',
                password:'',
                email:'',
                mobile:'',
            },
            //添加用户表单验证规则
            addFormRules:{
                username:[
                    {required:true,message:'请输入用户名',trigger:'blur'},
                    {
                        min:3,
                        max:10,
                        message:'用户名长度在3~10个字符之间',
                        trigger:'blur'
                    }
                ],
            password:[
                {
                    required:true,message:'请输入密码',trigger:'blur'},
                    {
                        min:6,
                        max:12,
                        message:'密码长度在6~12个字符之间',
                        trigger:'blur'
                    }
            ],
            email:[
               {
                   required:true,message:'请输入邮箱',trigger:'blur'},
                {
                    validator:checkEmail,trigger:'blur'
                } 
               
            ],
            mobile:[
               {
                   required:true,message:'请输入电话',trigger:'blur'
               } ,
               {
                    validator:checkMobile,trigger:'blur'
                } 
            ]
            },
            //控制修改用户对话框的显示与隐藏
            editDialogVisible:false,
            //修改表单验证规则对象
            editFormRules:{
              email:[
                {
                   required:true,message:'请输入邮箱',trigger:'blur'},
                {
                    validator:checkEmail,trigger:'blur'
                } 
              ],
               mobile:[
               {
                   required:true,message:'请输入电话',trigger:'blur'
               } ,
               {
                    validator:checkMobile,trigger:'blur'
                } 
            ]
            },
            //控制分配角色对话框的显示与隐藏
            setRoleDialogVisible:false,
            //需要被分配角色的用户信息
            userInfo:{},
            //所有角色的数据列表
            roleslist:[],
            //已选中的角色id值
            selectedRoleId:''
        }
    },
    created(){
        this.getUserList()
    },
    methods:{
      //根据id删除用户信息
    async removeUserById(id){
        //询问用户是否删除
       const confirmResult =  await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
          confirmButtonText: '确定',
          cancelButtonText: '取消',
          type: 'warning'
        }).catch(err=>err)
        //用户确定删除，返回值为confirm，取消删除则为cancel
        if(confirmResult !== 'confirm'){
          return this.$message.info('已取消删除')
        }
      const {data:res} = await this.$http.delete('users/'+id)
      if(res.meta.status!==200){
        return this.$message.error('删除用户失败!')
      }
      this.$message.success('删除用户成功!')
      this.getUserList()
      },
      //修改用户信息并且提交
         editUserInfo(){
           this.$refs.editFormRef.validate( async valid=>{
          if(!valid)return
          //可以发起修改用户的请求
         const {data:res} = await this.$http.put('users/'+this.editForm.id,{
           email:this.editForm.email,
           mobile:this.editForm.mobile
         })
         if(res.meta.status !== 200){
           this.$message.error('修改用户失败!')
         }
         this.$message.success('修改用户成功!')
         //关闭表单框
         this.editDialogVisible = false
         //重新获取用户列表
         this.getUserList()
        })
      },
      //监听修改用户对话框的关闭事件
      editDialogClosed(){
        this.$refs.editFormRef.resetFields()
      },
      //点击确定 添加新用户
     addUser(){
        this.$refs.addFormRef.validate( async valid=>{
          if(!valid)return
          //可以发起添加用户的请求
         const {data:res} = await this.$http.post('users',this.addForm)
         if(res.meta.status !== 201){
           this.$message.error('添加用户失败!')
         }
         this.$message.success('添加用户成功!')
         //关闭表单框
         this.addDialogVisible = false
         //重新获取用户列表
         this.getUserList()
        })
      },
      //监听对话框关闭事件
      addDialogClosed(){
          this.$refs.addFormRef.resetFields()
      },
       async getUserList(){
        const {data:res} = await this.$http.get('users',{params:this.queryInfo})
        if(res.meta.status !== 200)return this.$message.error('获取用户列表失败!')
        this.userlist = res.data.users
        this.total = res.data.total
        
        },
        //监听pagesize改变的事件
        handleSizeChange(newSize){
            this.queryInfo.pagesize = newSize
            this.getUserList()
        },
        //监听页码值改变事件
        handleCurrentChange(newCurrent){
                this.queryInfo.pagenum = newCurrent
            this.getUserList()
        
        },
        //监听switch开关状态
       async userStateChanged(userinfo){
          const {data:res} = await  this.$http.put(`users/${userinfo.id}/state/${userinfo.mg_state}`)
          if(res.meta.status !== 200){
              userinfo.mg_state = !userinfo.mg_state
              return this.$message.error('更新用户状态失败')
          }
          return this.$message.success('更新状态成功!')
          
        },
        //展示用户编辑的对话框
       async showEditDialog(id){
        const {data:res} = await this.$http.get('users/'+id)
        if(res.meta.status !== 200){
          return this.$message.error('查询用户信息失败！')
        }
          this.editForm = res.data
          this.editDialogVisible = true
        },
        //分配角色对话框的展示
       async setRole(userInfo){          
          this.userInfo = userInfo
          //在展示对话框之前获取所有角色列表
          const {data:res} = await  this.$http.get('roles')
          if(res.meta.status !== 200){
              return this.$message.error('获取角色失败')
          }
          this.roleslist = res.data
          this.setRoleDialogVisible = true
        },
        //点击按钮分配角色
       async saveRoleInfo(){
          if(!this.selectedRoleId)
           return this.$message.error('请选择要分配的角色')
           const {data:res} = await  this.$http.put(`users/${this.userInfo.id}/role`,{rid:this.selectedRoleId})
        if(res.meta.status !== 200){
              return this.$message.error('更新角色失败')
          }
          this.$message.success('更新角色成功')
          this.getUserList()
          this.setRoleDialogVisible = false
        },
        //监听分配角色对话框的关闭事件
        setRoleDialogClosed(){
          this.selectedRoleId = '',
          this.userInfo = {}
        }
    }
}
</script>

<style lang='less' scoped>

</style>